The fundamental requirement for joining a youth girls basketball league is finding the appropriate age and grade bracket for the girl in question and registering before the deadline of the selected league. The next step is to fill out and turn in any required forms and dues by the deadline.
The information a league requires may include emergency contacts and requests to play on a specific team. Most leagues also require a parent or guardian to sign an injury liability waiver for the girl. Additionally, some competitive leagues may require a fitness test or conditioning requirement prior to joining a team.